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EFD20/10/7-3C94-A160
Transformer Cores, EFD, EFD20, 3C94, 47 mm, 31 mm²
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: FERROXCUBE
- Product type: Transformer Cores
- Core Size: EFD20
- Core Type: EFD
- Core Material Grade: 3C94
- Inductance Factor Al: 160nH
- Effective Magnetic Path Length: 47mm
- Ae Effective Cross Section Area: 31mm²
| Delivery and price | |
|---|---|
| Units per pack | 24000 |
| Price | 0.291 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## _**FERROXCUBE**_ **EFD20/10/7** EFD cores and accessories Supersedes data of September 2004 2008 Sep 01 **==> picture [347 x 67] intentionally omitted <==** Ferroxcube ## EFD cores and accessories ## EFD20/10/7 ## **CORES** ## **Effective core parameters** |**SYMBOL**|**PARAMETER**|**VALUE**|**UNIT**| |---|---|---|---| |Σ(I/A)|core factor (C1)|1.52|mm−1| |Ve|effective volume|1460|mm3| |Ie|effective length|47.0|mm| |Ae|effective area|31.0|mm2| |Amin|minimum area|29|mm2| |m|mass of core half|≈3.5|g| **==> picture [242 x 262] intentionally omitted <==** **----- Start of picture text -----**<br> handbook, halfpage<br>7.7<br>10 0.25<br> 0.15<br>20 0.55<br>15.4 0.5<br>8.9<br> 0.2<br>6.65 0.17 3.6<br> 0.15<br> 0.15<br>MGC345<br>Dimensions in mm.<br>Fig.1 EFD20/10/7 core half.<br>**----- End of picture text -----**<br> ## **Core halves** AL measured in combination with a non-gapped core half, clamping force for AL measurements 20 ±10 N, unless stated otherwise. |otherwise.||||| |---|---|---|---|---| |**GRADE**|**AL**<br>**(nH)**|µ**e**|**TOTAL AIR GAP**<br>**(**µ**m)**|**TYPE NUMBER**| |3C90|63±3%(1)|≈76|≈960|EFD20/10/7-3C90-E63| ||100±3%|≈121|≈510|EFD20/10/7-3C90-A100| ||160±5%|≈193|≈280|EFD20/10/7-3C90-A160| ||250±8%|≈302|≈160|EFD20/10/7-3C90-A250| ||315±10%|≈380|≈120|EFD20/10/7-3C90-A315| ||1300±25%|≈1570|≈0|EFD20/10/7-3C90| |3C94|63±3%(1)|≈76|≈960|EFD20/10/7-3C94-E63| ||100±3%|≈121|≈510|EFD20/10/7-3C94-A100| ||160±5%|≈193|≈280|EFD20/10/7-3C94-A160| ||250±8%|≈302|≈160|EFD20/10/7-3C94-A250| ||315±10%|≈380|≈120|EFD20/10/7-3C94-A315| ||1300±25%|≈1570|≈0|EFD20/10/7-3C94| |3C95|1540±25%|≈1865|≈0|EFD20/10/7-3C95| |3C96|1200±25%|≈1450|≈0|EFD20/10/7-3C96| |3F3|63±3%(1)|≈76|≈960|EFD20/10/7-3F3-E63| ||100±3%|≈121|≈510|EFD20/10/7-3F3-A100| ||160±5%|≈193|≈280|EFD20/10/7-3F3-A160| ||250±8%|≈302|≈160|EFD20/10/7-3F3-A250| ||315±10%|≈380|≈120|EFD20/10/7-3F3-A315| ||1200±25%|≈1450|≈0|EFD20/10/7-3F3| 2008 Sep 01 2 Ferroxcube ## EFD cores and accessories ## EFD20/10/7 |**GRADE**|**AL**<br>**(nH)**|µ**e**|**TOTAL AIR GAP**<br>**(**µ**m)**|**TYPE NUMBER**| |---|---|---|---|---| |3F35|920±25%|≈1110|≈0|EFD20/10/7-3F35| |3F4|63±3%(1)<br>100±3%<br>160±5%<br>250±8%<br>315±10%<br>650±25%|≈76|≈900|EFD20/10/7-3F4-E63| |||≈121|≈450|EFD20/10/7-3F4-A100| |||≈193|≈230|EFD20/10/7-3F4-A160| |||≈302|≈120|EFD20/10/7-3F4-A250| |||≈380|≈80|EFD20/10/7-3F4-A315| |||≈780|≈0|EFD20/10/7-3F4| |3F45|650±25%|≈780|≈0|EFD20/10/7-3F45| ## **Note** 1. Measured in combination with an equal gapped core half, clamping force for AL measurements, 20 ±10 N. ## **Properties of core sets under power conditions** |**GRADE**|**B (mT) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**| |---|---|---|---|---|---|---| ||**H = 250 A/m;f =**<br>**25 kHz;**<br>**T = 100** °**C**|**f = 25 kHz;**<br>**= 200 mT;**<br>**T = 100**°**C**<br>**B**ˆ|**f = 100 kHz;**<br>**= 100 mT;**<br>**T = 100** °**C**<br>**B**ˆ|**f = 100 kHz;**<br>**= 200 mT;**<br>**T = 25** °**C**<br>**B**ˆ|**f = 100 kHz;**<br>**= 200 mT;**<br>**T = 100** °**C**<br>**B**ˆ|**f = 400 kHz;**<br>**= 50 mT;**<br>**T = 100** °**C**<br>**B**ˆ| |3C90|≥330|≤0.16|≤0.17|−|−|−| |3C94|≥330|−|≤0.13|−|≤0.8|−| |3C95|≥330|−|−|≤0.86|≤0.82|−| |3C96|≥330|−|≤0.1|−|≤0.6|≤0.26| |3F35|≥300|−|−|−|−|≤0.13| |3F3|≥315|−|≤0.17|−|−|≤0.28| |3F4|≥300|−|−|−|−|−| ## **Properties of core sets under power conditions (continued)** |**GRADE**|**B (mT) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**| |---|---|---|---|---|---|---| ||**H = 250 A/m;**<br>**f = 25 kHz;**<br>**T = 100**°**C**|**f = 500 kHz;**<br>**= 50 mT;**<br>**T = 100**°**C**<br>**B**ˆ|**f = 500 kHz;**<br>**= 100 mT;**<br>**T = 100** °**C**<br>**B**ˆ|**f = 1 MHz;**<br>**= 30 mT;**<br>**T = 100** °**C**<br>**B**ˆ|**f = 1 MHz;**<br>**= 50 mT;**<br>**T = 100**°**C**<br>**B**ˆ|**f = 3 MHz;**<br>**= 10 mT;**<br>**T = 100**°**C**<br>**B**ˆ| |3C90|≥330|−|−|−|−|−| |3C94|≥330|−|−|−|−|−| |3C95|≥330|−|−|−|−|−| |3C96|≥330|≤0.5|−|−|−|−| |3F35|≥300|≤0.2|≤1.5|−|−|−| |3F3|≥315|−|−|−|−|−| |3F4|≥300|−|−|≤0.43|−|≤0.7| |3F45|≥300|−|−|≤0.34|≤1.25|≤0.55| 2008 Sep 01 3 Ferroxcube ## EFD cores and accessories ## EFD20/10/7 ## **COIL FORMERS** ## **General data** |**General data**|| |---|---| |**PARAMETER**|**SPECIFICATION**| |Coil former material|phenolformaldehyde (PF), glass-reinforced, flame retardant in accordance with<br>_“UL94 V-0”_; UL file number E167521(M)| |Pin material|copper-tin alloy(CuSn), Ni flash, tin (Sn) plated, see note 1| |Maximum operatingtemperature|180 °C,_“IEC 60085”_, class H| |Resistance to solderingheat|_“IEC 60068-2-20”_, Part 2, Test Tb, method 1B, 350 °C, 3.5 s| |Solderability|_“IEC 60068-2-20”_, Part 2, Test Ta, method 1: 235°C, 2 s| **==> picture [497 x 208] intentionally omitted <==** **----- Start of picture text -----**<br> 14.8 max<br>handbook, full pagewidth<br>10.6 − [0 ] 0.15 14.8 − [0 ] 0.2 5<br>9.23 [+][0.15] 13.2 min<br>0<br>10 max 9.5 max 3.93 [+][0.1] 0 5.3 − [0 ] 0.1<br>17.5<br>5.2 ±0.3<br>14.1 ±0.1<br>1.6<br>5 ±0.1 ∅ 0.6<br>CBW087<br>15 ±0.1 17.5 ±0.1 1.3 [+][0.15]<br>0<br>20.2 max. 21.2 max.<br>Dimensions in mm.<br>Fig.2 EFD20/10/7 coil former; 8-pins.<br>**----- End of picture text -----**<br> ## **Winding data and area product for EFD20 coil former with 8-pins** |**NUMBER OF**<br>**SECTIONS**|**WINDING**<br>**AREA**<br>**(mm2)**|**MINIMUM**<br>**WINDING**<br>**WIDTH**<br>**(mm)**|**AVERAGE**<br>**LENGTH OF**<br>**TURN**<br>**(mm)**|**AREA**<br>**PRODUCT**<br>**Ae x Aw**<br>**(mm4)**|**TYPE NUMBER**| |---|---|---|---|---|---| |1|26.4|13.2|36.5|818|CSH-EFD20-1S-8P(1)| ## **Note** 1. Also available with post-inserted pins. 2008 Sep 01 4 Ferroxcube ## EFD cores and accessories ## EFD20/10/7 ## **COIL FORMERS** ## **General data** |**General data**|| |---|---| |**PARAMETER**|**SPECIFICATION**| |Coil former material|liquid crystal polymer (LCP), glass reinforced, flame retardant in accordance with<br>_“UL94 V-0”_; UL file number E54705 (M)| |Pin material|copper-tin alloy(CuSn), Ni flash, tin (Sn) plated| |Maximum operatingtemperature|155 °C,_“IEC 60085”_, class F| |Resistance to solderingheat|_“IEC 60068-2-20”_, Part 2, Test Tb, method 1B, 350 °C, 3.5 s| |Solderability|_“IEC 60068-2-20”_, Part 2, Test Ta, method 1: 235°C, 2 s| **==> picture [457 x 203] intentionally omitted <==** **----- Start of picture text -----**<br> 3.75<br>14.8 − [0 ] 0.2<br>10.3 − [0 ] 0.15 14.8 − [0 ] 0.2<br>9.2 [+][0.1] 13.5 min.<br>0<br>0.5<br>9.5 − [0 ] 0.2 3.9 [+][0.1] 0 5 − [0 ] 0.1 0.4<br>17.5<br>3.8 ±0.3<br>0.3 1.35 min.<br>0.7 − [0 ] 0.1 17.5<br>7.5 ±0.1 19.5<br>15 ±0.1 23.5 ±0.2<br>21.5 ±0.2 1 [+][0.15] CBW269<br>0<br>Dimensions in mm.<br>Fig.3 EFD20/10/7 coil former (PCB); 10-pins.<br>**----- End of picture text -----**<br> ## **Winding data and area product for EFD20/10/7 coil former (PCB) with 10-pins** |**NUMBER OF**<br>**SECTIONS**|**WINDING**<br>**AREA**<br>**(mm2)**|**MINIMUM**<br>**WINDING**<br>**WIDTH**<br>**(mm)**|**AVERAGE**<br>**LENGTH OF**<br>**TURN**<br>**(mm)**|**AREA**<br>**PRODUCT**<br>**Ae x Aw**<br>**(mm4)**|**TYPE NUMBER**| |---|---|---|---|---|---| |1|27.7|13.5|34.1|859|CPH-EFD20-1S-10PD-Z| 2008 Sep 01 5 Ferroxcube ## EFD cores and accessories ## EFD20/10/7 ## **COIL FORMERS** ## **General data** |**General data**|| |---|---| |**PARAMETER**|**SPECIFICATION**| |Coil former material|liquid crystal polymer (LCP), glass reinforced, flame retardant in accordance with<br>_“UL94 V-0”_; UL file number E83005 (M)| |Pin material|copper-tin alloy(CuSn), tin (Sn) plated| |Maximum operatingtemperature|155 °C,_“IEC 60085”_, class F| |Resistance to solderingheat|_“IEC 60068-2-20”_, Part 2, Test Tb, method 1B, 350 °C, 3.5 s| |Solderability|_“IEC 60068-2-20”_, Part 2, Test Ta, method 1: 235°C, 2 s| **==> picture [497 x 229] intentionally omitted <==** **----- Start of picture text -----**<br> 2<br>handbook, full pagewi dth 14.8 − [0 ] 0.2<br>10.3 − [0 ] 0.15 14.8 − [0 ] 0.2 2.8<br>9.2 [+][0.15] (13.5 min.)<br>0<br>max.9.5 3.9 [+][0.1] 0 5 − [0 ] 0.1 0.3 20<br>0.3 1 1.8<br>7.5 ±0.05 21<br>15 ±0.05 23.7 max. 2<br>21.7 max. CBW270<br>3.75<br>Dimensions in mm.<br>Fig.4 EFD20/10/7 coil former (SMD); 10-solder pads.<br>**----- End of picture text -----**<br> ## **Winding data and area product for EFD20/10/7 coil former (SMD) with 10-solder pads** |**NUMBER OF**<br>**SECTIONS**|**WINDING**<br>**AREA**<br>**(mm2)**|**MINIMUM**<br>**WINDING**<br>**WIDTH**<br>**(mm)**|**AVERAGE**<br>**LENGTH OF**<br>**TURN**<br>**(mm)**|**AREA**<br>**PRODUCT**<br>**Ae x Aw**<br>**(mm4)**|**TYPE NUMBER**| |---|---|---|---|---|---| |1|27.7|13.5|34.1|859|CPHS-EFD20-1S-10P| 2008 Sep 01 6 Ferroxcube ## EFD cores and accessories ## EFD20/10/7 ## **COIL FORMERS** ## **General data** |**General data**|| |---|---| |**PARAMETER**|**SPECIFICATION**| |Coil former material|phenolformaldehyde (PF), glass reinforced, flame retardant in accordance with<br>_“UL94 V-0”_; UL file number E41429 (M)| |Solder pad material|copper-tin alloy(CuSn), tin (Sn) plated| |Maximum operatingtemperature|180 °C,_“IEC 60085”_, class H| |Resistance to solderingheat|_“IEC 60068-2-20”_, Part 2, Test Tb, method 1B, 350 °C, 3.5 s| |Solderability|_“IEC 60068-2-20”_, Part 2, Test Ta, method 1: 235°C, 2 s| **==> picture [474 x 163] intentionally omitted <==** **----- Start of picture text -----**<br> 2<br>14.8 −0.2<br>10.4 ±0.2 14.8 −0.2 2.8<br>9.2 +0.2 13.3 min.<br>handbook, full pagewidth<br>10.2 3.9 +0.2 5.3 −0.2 20<br> max.<br>0.3 1 7.5 1.8 21<br>15 23.7 max. 2<br>CBW500 21.7 max.<br>Dimensions in mm. 3.75<br>**----- End of picture text -----**<br> Fig.5 EFD20/10/7 coil former (SMD); 10-solder pads. ## **Winding data and area product for EFD20/10/7 coil former (SMD) with 10-solder pads** |**NUMBER**<br>**OF**<br>**SECTIONS**|**NUMBER**<br>**OF SOLDER**<br>**PADS**|**WINDING**<br>**AREA**<br>**(mm2)**|**MINIMUM**<br>**WINDING**<br>**WIDTH**<br>**(mm)**|**AVERAGE**<br>**LENGTH OF**<br>**TURN**<br>**(mm)**|**AREA**<br>**PRODUCT**<br>**Ae x Aw**<br>**(mm4)**|**TYPE NUMBER**| |---|---|---|---|---|---|---| |1|10|27.2|13.3|34.9|843|CSHS-EFD20-1S-10P-Z| 2008 Sep 01 7 Ferroxcube ## EFD cores and accessories ## EFD20/10/7 ## **MOUNTING PARTS** ## **General data** |**General data**|||| |---|---|---|---| |**ITEM**|**REMARKS**|**FIGURE**|**TYPE NUMBER**| |Clamp<br>|stainless steel (CrNi); clampingforce≈30 N|6|CLM-EFD20| |Clip<br>|stainless steel (CrNi); clampingforce≈20 N|7|CLI-EFD20| **==> picture [497 x 305] intentionally omitted <==** **----- Start of picture text -----**<br> 21.5 − [0 ] 0.3<br>18.5 20 ±0.2<br>17 17.5<br>handbook, full pagewidth<br>4.7<br>19.3 − [0 ] 0.2 ± 0.054 CBW169<br>Dimensions in mm.<br>Fig.6 Clamp CLM-EFD20<br>**----- End of picture text -----**<br> **==> picture [357 x 167] intentionally omitted <==** **----- Start of picture text -----**<br> 5 6<br>handbook, halfpage<br>24 18.3<br>MGC349 4<br>Dimensions in mm.<br>**----- End of picture text -----**<br> Fig.7 Clip CLI-EFD20. 2008 Sep 01 8 Ferroxcube EFD cores and accessories ## EFD20/10/7 ## **DATA SHEET STATUS DEFINITIONS** |**DATA SHEET**<br>**STATUS**|**PRODUCT**<br>**STATUS**|**DEFINITIONS**| |---|---|---| |Preliminary<br>specification|Development|This data sheet contains preliminary data. Ferroxcube reserves the right to<br>make changes at any time without notice in order to improve design and<br>supplythe best possible product.| |Product specification|Production|This data sheet contains final specifications. Ferroxcube reserves the right<br>to make changes at any time without notice in order to improve design and<br>supplythe best possible product.| ## **DISCLAIMER** **Life support applications** These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube for any damages resulting from such application. ## **PRODUCT STATUS DEFINITIONS** |**STATUS**|**INDICATION**|**DEFINITION**| |---|---|---| |**Prototype**||These are products that have been made as development samples for the purposes of<br>technical evaluation only. The data for these types is provisional and is subject to<br>change.| |**Design-in**||These products are recommended for new designs.| |**Preferred**||These products are recommended for use in current designs and are available via our<br>sales channels.| |**Support**||These products are**not**recommended for new designs and may not be available<br>through all of our sales channels. Customers are advised to check for availability.| 2008 Sep 01 9
Updated at February 9, 2023
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